Holder



1,493,909 L'- A. VANDIVER HOLDER led May 10, 1922 2 Sheets-Sheet 1 May13 .1924. 1,493,969

' L. A. VANDIVER HOLDER iled May 10 1922 2 Sheets-Sheet 2 314 006? or vPatented May 13, 1924..

UNITEDSTATES LESLIE A. VANDIVER, OF KANSAS CITY, MISSOURI.

HOLDER.

Application filed May 10, 1922. Serial No. 559,843.

To alt whom it may concern:

Be it known that I, Lnsnrn A. VANDIVER, a citizen of the United States,residing at Kansas City, in the county of Jackson and State of Missouri,have invented a new and useful Holder, of which the following is aspecification.

By way of explanation it may be stated that it is the common practice indentistry, to anchor or secure the dam externally, the result being thata considerable amount of dam is used and wasted, a further result beingthat the patient not infrequently is subjected certainly toinconvenience and discomfort, and often to pain, by the means forholding the dam in place.

The foregoing being understood, it may be stated that this inventionaims to provide a simple means whereby the dam may be held, for the mostpart, or entirely within the mouth of the patient, a minimum amount ofdam being used, and the patient being subjected to none of theinconvenience or pain which results from anchoring the dam externally.

Another object of the invention is to provide a dental dam having areflecting surface, to the end that the operator may be afforded addedlight.

It is within the province of the disclosure to improve generally and toenhance the utility of devices of that type to which the inventionappertains.

With the above and other objects in view, which will. appear as thedescription proceeds, the invention resides in the combination andarrangement of parts and in the details of construction hereinafterdescribed and claimed, it being understood that, within the scope ofwhat is claimed, changes in the precise embodiment of the inventionshown can be made without departing from the spirit of the invention;

In the drawings Figure '1, shows in vertical section, one form of dGVliGconstructed in accordance with. the invention, the same being located inthe mouth of the patient; Figure 2 is an elevation of the structureshown in Figure 1, out of the mouth of the patient; Figure 3 is afragmental plan showing a slight modification; Figure 4 is a planshowing a modified. form of the invention; Figure 5 is a section on theline 55 ofFigure 4; and Figure 6 is a section on the line 6-6 of Figure4.

In carrying out the invention as contemplated in Figures 1 and 2, thereis provided a frame, denoted generally by the numeral 1, and ordinarilyin the form of a plate, fashioned from metal or any other suitablesubstance having the necessary rigidity.

The frame 1 includes an intermediate body 2 and forwardly extended wings3 at the opposite ends of the body, the wings preferably being disposedat an obtuse ass-e to the body. In the body 2 and in the wings 3,arcuate openings at are formed. Tongues 5 and 6 are fashioned integrallywith the body 2, and projectin opposite directions into the openings 4,the tongues being disposed at an acute angle to the body and beinginclined in a direction opposite'to that in which the wings 3 extend. Attheir ends and at their sides, the wings 3 are provided with aperturedlugs 7 shown most clearly in Figure 3, although Figure 3 discloses ainodification having nothing to do with the ugs.

The rubber dam 8 is placed behind the body 2 and is carried forwardlyalong the wings 3, the dam being punched, so that the lugs 7 may extendtherethrough, the dam being folded backwardly upon the wings 3, as shownat 9. Clamps 10 are slipped over the ends of the wings, to aid inholding the dam, the clamps having openings 11 receiving the endportions of the wings.

In Figure 2, the clamps 10 are shown as separable. In Figure 3, partshereinbefore described have been designated by numerals previously used,with the suffix a. In this form of the invention, the clamps 10a arepivoted at 12 to the wings 3a.

The dam 8 is punched to receive the teeth 14:, or the tooth, to befilled. The frame 1 is located partly in. the mouth of the patient, thewings 3 projecting outwardly, as shown in Figure 1, the openings 4-serving to receive the upper and lower teeth, aii'd the tongues 5 and 6,the tongue 5 in the application shown in Figure 1 serving to stretch thedam to the arch of the mouth.

The construction of the device, obviously, is such that ordinaryanchoring means for the dam may be dispensed with. The frame 1, when inthe position shown in Figure 1, serves-as a jaw rest for the patient.

Especial attention is directed to the fact that the dam 8 is coveredwith a light refleeting substance, such as aluminum, which aids theoperator in his (work.

The device as above described is adapted to be used for anteriorteethgbut When posterior te'ethare to be filled,'rec'ourse maybe had tothe structure shown in Figures 4, 5

which may be of rectangular outline, the

frame having lugs or prongs 16. The frame" is provided at its ends withbosses 17, fac1l- U itating the handling of the frame. shaped clamps 18are pivoted at 19 to the frame 15 and m'ayb'eprovid'ed 'With openings 20for the reception of the lugs 01' prongs 16f The da m'ii l is placedacross and folded upon the frame 15 and is held t l'iere'o'n 'bythe-prongs ldan'd by theclamps 18. The

dam 21 is punched for tlie'receptionof the tooth '22, the dambeinghe'l'd'aboutthe tooth by an ordinary clzimp23whi'ch isnot'described in detail because it is a standard article ofmanufacture,the"construction and operation ofwhic'lr-is wellundejr'st'ood'by d'ei'itis'ts. The 'tooth'22 projects throughthe opening24 in'the frame 15, and through the dam 21, as shown'in Figure 5, thecavity in the tooth, which is to be filled, obviously being kept a drycondition. The dam 21 has a reflecting. surface, as hereinbe'foredescribed.

lVhat is claimed is 1. In a device of the "class described, a framecomprising a body havlng Wings, and

'provided with openings adjacent the base of and 6, wherein there isdisclosed a frame 15,

said wings, the frame having a dam stretching tongues cooperating withthe openings.

2. In a device of the class described, a frame including a body havingforwardly presented wings at the upper and lower ends thereof, the bodyhaving atooth receiving opening adjacent each wing, and dam hold- 'ingmeans on the frame.

5.111 a device of "the class described, a frame comprising a bodyprovided with forwardly presented wings, the frame having tooth receii'ing openings extended into the wings, and being provided withrearwardly inclined dam-stretching tongues, cooperating with theopenings; and dam-holding means carried by the frame.

In testimony that I claim the foregoing as my own, I have hereto aflixedmy signature in the presence of two witnesses.

WILLIAM J. BRADY, D. A. BONNER.

